/*
 * Copyright 2020 Spotify AB.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.spotify.scio.runners.flink

import com.spotify.scio.RunnerContext
import org.apache.beam.runners.flink.{FlinkPipelineOptions, FlinkRunner}
import org.apache.beam.sdk.options.PipelineOptions

import scala.jdk.CollectionConverters._

/** Flink runner specific context. */
case object FlinkContext extends RunnerContext {

  override def prepareOptions(options: PipelineOptions, artifacts: List[String]): Unit = {
    val classLoader = classOf[FlinkRunner].getClassLoader
    val flinkOptions = options.as(classOf[FlinkPipelineOptions])
    val localArtifacts = flinkOptions.getFilesToStage() match {
      case null => Nil
      case l    => l.asScala
    }
    val filesToStage = RunnerContext
      .filesToStage(options, classLoader, localArtifacts, artifacts)
      .asJavaCollection

    flinkOptions.setFilesToStage(new java.util.ArrayList(filesToStage))
  }

}
